Strange subfolder "DTAR_08E86330_4835_4B5C_9E5A_61F37AE1A077_DTAR" created in VS2015's UWP solution folder
I've seen this empty sub folder DTAR_08E86330_4835_4B5C_9E5A_61F37AE1A077_DTAR created few times in different solutions (all UWP) and even in default "Blank App (Universal Windows)" project, the problem is - I can't reproduce it intentionally - sooner or later, it is just created, but I don't know why and what was the cause.
Does anyone have any clue?
PS. Here is my config if that matter:
Microsoft Visual Studio Community 2015 Version 14.0.23107.0 D14REL
Microsoft .NET Framework 4.6.01028
Visual Basic 2015 00322-20000-00000-AA447
Visual C# 2015 00322-20000-00000-AA447
Visual C++ 2015 00322-20000-00000-AA447
Windows Phone SDK 8.0 - ENU 00322-20000-00000-AA447
Application Insights Tools for Visual Studio Package 1.0
ASP.NET and Web Tools 14.0.20626.0
ASP.NET Web Frameworks and Tools 2013 5.2.30624.0
Common Azure Tools 1.5
GenerateUnitTest 1.0
GitHub.VisualStudio 1.0
JetBrains ReSharper Ultimate 10 EAP 4 Build 104.0.20151009.190534-EAP4
Microsoft Azure Mobile Services Tools 1.4
NuGet Package Manager 3.2.0
P4VS - Perforce Plugin for Visual Studio 2015.1.105.4164
PreEmptive Analytics Visualizer 1.2
SQL Server Data Tools 14.0.50616.0
Visual Studio Tools for Universal Windows Apps 14.0.23309.00 d14oob
There's actually an issue filed on Connect, which is currently reviewed by Microsoft. So brings in some room for the reasonable suspicion that this is a bug of Visual Studio 2015.
There is also a workaround available:
Posted by DaisyDave on 12/15/2015 at 2:40 AM
Opening solutions from within the IDE stops these folders appearing.
It seems to be (finally) fixed in recent Visual Studio Update 3 RC (works for me at least).
Also there is another "more permanent" workaround from EricStj - MSFT (copy-pasted from his comment to relevant issue here) for those who would prefer to wait for RTM version of this update and have to skip current RC version:
The fix didn't make it into Update 2. It should come out in Update 3. To workaround you can copy this file replace this file "C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework.NETCore\v5.0\GlobalDTARSettings.proj" with the version from here: https://gist.github.com/ericstj/b40dd3846c3faec5ea1ba55fce64d1f8.
In general I open solutions from Windows Explorer rather than from within Visual Studio. If you're like me the Connect issue mentioned in Andreas' answer has a second workaround, for opening the solution from Windows Explorer:
Posted by Dee Key on 3/4/2016 at 11:22 AM
From the Windows File Explorer right-click on the solution file and Open with Visual Studio 2015.